Indoor unit and heating and ventilation equipment

Abstract

The utility model provides an indoor unit and heating and ventilation equipment. The indoor unit comprises a shell and an electric control box, the shell comprises a base plate, a plurality of side plates and a panel, the side plates are arranged on the peripheral side of the base plate in a surrounding mode, the panel and the base plate are oppositely arranged, the panel covers the bottoms of the side plates, so that a mounting cavity is defined by the panel, the base plate and the side plates, and the electric control box comprises a box body, a box cover and a circuit board assembly; the box body is connected to the side plate, and the box cover covers the box body and forms an accommodating cavity for accommodating the circuit board assembly. The use performance of the electric control cover in the indoor unit is good.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an indoor unit and a heating and ventilation device using the indoor unit. Background Art

[0002] Embedded indoor units generally refer to indoor units installed on the ceiling, and ceiling units are more commonly used in taller buildings.

[0003] In the related art, the embedded indoor unit generally includes a shell and an electric control box. The shell includes a chassis, multiple side panels and a panel. The multiple side panels are arranged around the chassis. The panel is arranged opposite to the chassis and covers the bottom of the multiple side panels to form an installation cavity between the chassis and the multiple side panels. The electric control box includes a box body, a box cover and a circuit board assembly. The box body is connected to the side panels, and the box cover is covered on the box body to form a accommodating cavity for accommodating the circuit board assembly.

[0004] However, in the above-mentioned embedded indoor unit, the electric control cover only serves to protect the circuit board assembly, making its function relatively simple. Utility Model Content

[0005] The embodiments of the present application provide an indoor unit and HVAC equipment, which are used to solve the problem of single function of the electric control cover of the indoor unit in the related art.

[0006] On the one hand, the present application provides an indoor unit, including a shell, a circuit board assembly, an electric control cover and a functional module, wherein an installation cavity is formed in the shell; the circuit board assembly is located in the installation cavity; the electric control cover is located in the installation cavity and is connected to the shell, the electric control cover and the shell are enclosed to form a accommodating cavity for accommodating the circuit board assembly, and a wire passing hole is provided on the electric control cover; the functional module is arranged on the electric control cover, and the functional module is electrically connected to the circuit board assembly via a wiring harness passing through the wire passing hole.

[0007] As an optional embodiment, the shell includes a panel and a casing, the bottom of the casing is open, and the panel cover is arranged at the opening to form an installation cavity together with the panel; the panel has a return air inlet and an air outlet connected to the installation cavity, and the return air inlet and the air outlet are arranged at intervals; wherein the electric control cover is exposed by either the return air inlet or the air outlet.

[0008] As an optional embodiment, the casing includes a chassis and a plurality of side panels arranged around the chassis; the chassis and the panel are arranged opposite to each other, and the bottom surface of the chassis forms the top wall of the installation cavity, and the inner surface of the side panel forms the side wall of the installation cavity; the electrical control cover is connected to the chassis or the side panel.

[0009] As an optional embodiment, the electric control cover includes a cover body and multiple enclosures, the cover body is connected to one of the multiple side panels, one end of the enclosure is connected to the cover body, and the other end of the enclosure extends toward the chassis; the accommodating cavity has a cavity top wall, a cavity bottom wall and multiple cavity side walls arranged between the cavity top wall and the cavity bottom wall; the cavity top wall is formed by the chassis, the cavity bottom wall is formed by the cover body, and the multiple cavity side walls are formed by multiple enclosures and side panels connected to the cover body; wherein a functional module is arranged on the outer side of the cover body, and a wire passing hole is opened on the enclosure.

[0010] As an optional embodiment, the cover body includes a covering portion and a first connecting portion, and the enclosure is connected to the covering portion; in the width direction of the electric control cover, the first end of the first connecting portion is connected to the covering portion, and the second end of the first connecting portion extends toward the side plate to be connected to the side plate; wherein the first end of the first connecting portion is located above the second end of the first connecting portion. When the first end of the first connecting portion is located above the second end of the first connecting portion, it means that the extension direction of the first connecting portion has an angle with both the horizontal direction and the vertical direction, that is, the first connecting portion extends in an inclined direction, so that when the first connecting portion and the side plate are connected by a fastener, the axial direction of the fastener is perpendicular to the extension direction of the first connecting portion, that is, the axial direction of the fastener also has an angle with the horizontal direction and the vertical direction, so that the axial direction of the fastener can be avoided to be consistent with the horizontal direction, and further, when the operator connects the electric control cover and the side plate, his hand is easier to operate the third-party tool, and the hand is convenient to apply force to the third-party tool, which can improve the disassembly and assembly efficiency between the electric control cover and the housing.

[0011] As an optional embodiment, the covering part includes a first covering body and a second covering body; the first covering body is located between the enclosure and the second covering body, the second covering body is located between the first covering body and the first connecting part, and the second covering body is connected to the first end of the first connecting part; wherein one end of the first covering body is connected to the second covering body, and the other end of the first covering body extends upwardly and is connected to the enclosure. In this way, the connection between the covering part and the enclosure is not in the form of a right angle, but forms an oblique angle. Such a setting can avoid the airflow entering from the return air port to a certain extent, and avoid the influence of the setting of the electric control cover on the air intake to a certain extent, so that the indoor unit provided by the present application has better performance.

[0012] As an optional embodiment, the multiple enclosures include two first enclosures and one second enclosure; the two first enclosures are arranged opposite to each other along a first direction, and the second enclosure and the side panel connected to the cover body are arranged opposite to each other along a second direction, and there is an angle between the second direction and the first direction; wherein each first enclosure is provided with a wire hole.

[0013] As an optional implementation, there are two functional modules, and at least one of the two functional modules is electrically connected to the circuit board assembly via a wiring harness passing through a wire hole on a first enclosure disposed near the functional module.

[0014] As an optional implementation, the two functional modules are a sterilization module and a communication adapter module, and the sterilization module and the communication adapter module are arranged at intervals along the first direction; the sterilization module and the communication adapter module are both electrically connected to the circuit board assembly through a wiring harness passing through a wire hole on a first enclosure panel near them.

[0015] As an optional implementation, the functional module is detachably connected to the cover body.

[0016] As an optional implementation, the functional module is detachably connected to the cover body via a first fastener.

[0017] As an optional implementation, two opposite sides of the functional module are detachably connected to the electric control cover via a second fastener and a clamping structure.

[0018] As an optional embodiment, the clamping structure includes a first clamping portion and a second clamping portion; the first clamping portion is arranged on one of the functional module and the electric control cover, and the second clamping portion is arranged on the other of the functional module and the electric control cover; a first clamping hole is formed on one of the first clamping portion and the second clamping portion for the other to be clamped into, so as to clamp the functional module and the electric control cover together.

[0019] As an optional implementation, each first enclosure is provided with a plurality of wire passing holes, and the plurality of wire passing holes on the same first enclosure include at least one high-voltage wire passing hole and one low-voltage wire passing hole.

[0020] As an optional implementation, the multiple wire passing holes located on the same first enclosure plate also include user wiring wire passing holes.

[0021] As an optional embodiment, the cover body includes a covering portion and a first connecting portion, and the enclosure is connected to the covering portion; the first end of the first connecting portion is connected to the covering portion, the second end of the first connecting portion extends toward the side panel, and the first end of the first connecting portion is located above the second end of the first connecting portion; a second connecting portion protruding from the side panel surface is provided on the side of the side panel facing the second enclosure, and the second connecting portion is connected to the first connecting portion by a third fastener; wherein the bottom surface of the second connecting portion is an inclined surface in contact with the first connecting portion, and the bottom end of the inclined surface is connected to the surface of the side panel, and the top end of the inclined surface extends toward the second enclosure.

[0022] As an optional implementation, a plurality of second connection portions arranged at intervals are provided on the side panel.

[0023] As an optional implementation, a flange structure folded toward the outer side of the electric control cover is formed on the hole wall of the wire passing hole.

[0024] As an optional embodiment, the indoor unit provided in the present application also includes an insulating part and a wire management cover, the insulating part is connected to the shell, the wire management cover and the circuit board assembly are both connected to the insulating part, and the wire management cover is located below the circuit board assembly; a positioning structure is arranged between the wire management cover and the electric control cover, and the positioning structure is used to limit the relative position between the wire management cover and the electric control cover.

[0025] As an optional implementation, the positioning structure includes a positioning protrusion, which is arranged on one of the wire management cover and the electric control cover; a positioning hole is arranged on the other of the wire management cover and the electric control cover, and the positioning protrusion extends into the positioning hole.

[0026] As an optional implementation, there are multiple positioning protrusions, the multiple positioning protrusions are distributed at intervals, and one positioning protrusion corresponds to one positioning hole.

[0027] As an optional implementation, the return air port and the electric control cover are arranged opposite to each other in the up and down direction.

[0028] As an optional implementation, there are multiple return air vents; the areas occupied by the multiple return air vents on the panel cover the projection area of ​​the electric control cover on the panel.

[0029] On the other hand, the present application provides a HVAC device, including the above-mentioned indoor unit.

[0030] In the indoor unit and HVAC equipment provided by the embodiment of the present application, the electric control cover and the shell enclose a receiving cavity for accommodating the circuit board assembly, a wire hole is provided on the electric control cover, and a functional module is arranged on the electric control cover, and the functional module is electrically connected to the circuit board assembly through a wire harness passing through the wire hole. In this way, the electric control cover in the indoor unit provided by the embodiment of the present application not only has the function of protecting the circuit board assembly, but also integrates the function of the electric control module, so that the use performance of the electric control cover is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the local structure of an indoor unit provided in an embodiment of the present application;

[0033] Figure 2 for Figure 1A structural diagram of a local structure;

[0034] Figure 3 for Figure 2 Schematic diagram of the structure along direction A;

[0035] Figure 4 A schematic diagram of the three-dimensional structure of the electric control cover in the indoor unit provided in an embodiment of the present application;

[0036] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure from another perspective;

[0037] Figure 6 A schematic diagram of the three-dimensional structure of a communication switching module in an indoor unit provided in an embodiment of the present application;

[0038] Figure 7 A three-dimensional structural schematic diagram of another partial structure of the indoor unit provided in an embodiment of the present application;

[0039] Figure 8 for Figure 7 A magnified schematic diagram of the local structure at B in the middle;

[0040] Fig. 9 for Figure 8 Exploded diagram of

[0041] Fig.10 A structural schematic diagram of another partial structure of an indoor unit provided in an embodiment of the present application;

[0042] Fig.11 for Fig.10 Cross-sectional view along CC direction;

[0043] Fig.12 for Fig.11 A magnified schematic diagram of the local structure at D in the middle;

[0044] Fig.13 for Fig.11 A magnified schematic diagram of the local structure at E in the middle;

[0045] Fig.14 for Fig.10 Sectional view along FF;

[0046] Fig.15 for Fig.14 A magnified schematic diagram of the local structure at G in the middle;

[0047] Fig.16 for Figure 3 Enlarged schematic diagram of the local structure at H in the middle.

[0048] Description of reference numerals:

[0049] 1. Shell; 2. Circuit board assembly; 3. Electric control cover; 4. Accommodating cavity; 5. Functional module; 6. First fastener; 7. Snap-fit ​​structure; 8. Flanging structure; 9. Insulator;

[0050] 11. housing; 12. mounting cavity; 21. circuit board; 31. wire hole; 32. cover body; 33. enclosure; 51. sterilization module; 52. communication adapter module; 71. first clamping part; 72. second clamping part; 73. first clamping hole; 91. first connection slot; 92. second plug-in part; 93. first buckle; 94. second buckle; 95. third buckle; 10. cable management cover; 20. positioning structure;

[0051] 111, chassis; 112, side panel; 113, second connection part; 114, seventh connection hole; 115, first plug-in part; 311, strong current wire hole; 312, weak current wire hole; 313, user wiring wire hole; 321, third connection hole; 322, cover; 323, first connection part; 324, extension; 331, first enclosure; 332, second enclosure; 511, first connection hole; 521, second connection hole; 911, sixth connection hole; 951, second clamp hole; 101, third buckle; 201, positioning protrusion; 202, positioning hole;

[0052] 1131, fifth connecting hole; 3221, first covering body; 3222, second covering body; 3231, fourth connecting hole; 331a, first enclosure; 331b, first enclosure. DETAILED DESCRIPTION

[0053] In the related art, the embedded indoor unit generally includes a housing and an electric control box, the housing includes a chassis, a plurality of side panels and a panel, the plurality of side panels are arranged around the chassis, the panel is arranged opposite to the chassis and covers the bottom of the plurality of side panels to form an installation cavity enclosed between the chassis and the plurality of side panels, the electric control box includes a box body, a box cover and a circuit board assembly, the box body is connected to the side panels, and the box cover is covered on the box body to form an accommodating cavity for accommodating the circuit board assembly. However, in the above-mentioned embedded indoor unit, the electric control cover only plays the role of protecting the circuit board assembly, making its function relatively single.

[0054] Therefore, the embodiment of the present application provides an indoor unit and HVAC equipment, wherein the electric control cover can not only protect the circuit board assembly, but also the functional module is integrated on the electric control cover, so that the electric control cover not only has its own protection function, but also has the function of the functional module, which can improve the performance of the electric control cover.

[0055] It should be noted that the indoor unit provided in this embodiment includes but is not limited to a ceiling unit.

[0056] The following will introduce the embodiments of the present application in detail with reference to the accompanying drawings and specific implementation methods. It should be noted that in the following description, the ceiling machine will be taken as an example to introduce the embodiment in detail.

[0057] See also Figure 1 , Figure 1 A schematic diagram of the partial structure of an indoor unit provided in an embodiment of the present application. As shown in the figure, the present embodiment provides an indoor unit, including a housing 1, the housing 1 including a panel (not shown in the figure) and a casing 11, the casing 11 has an open bottom, the panel cover is arranged at the open position, and is enclosed with the panel to form an installation cavity 12; the panel has a return air port and an air outlet connected to the installation cavity 12, and the return air port and the air outlet are arranged at intervals.

[0058] Specifically, the housing 11 includes a chassis 111 and a plurality of side panels 112 arranged around the chassis 111 ; the chassis 111 is arranged opposite to the panel, and the bottom surface of the chassis 111 forms the top wall of the installation cavity 12 , and the inner surface of the side panel 112 forms the side wall of the installation cavity 12 .

[0059] Please combine Figure 2 and Figure 3 , Figure 2 for Figure 1 A schematic diagram of the local structure of Figure 3 for Figure 2 Schematic diagram of the structure along direction A. Generally, in order to realize the functions of the indoor unit such as cooling or heating, it is necessary to set an electric control module inside the installation cavity 12, and in order to realize the reduction of parts of the electric control module, the box body of the electric control box can be removed, that is, the electric control module includes a circuit board assembly 2 and an electric control cover 3, the circuit board assembly 2 and the electric control cover 3 are both located in the installation cavity 12, the electric control cover 3 is connected to the housing 1, and the electric control cover 3 and the housing 1 are enclosed to form a receiving cavity 4 for accommodating the circuit board assembly 2. In this way, the box body of the electric control module can be removed, simplifying the manufacturing process of the electric control module.

[0060] The electric control cover 3 can be connected to the chassis 111 or the side plate 112, and the connection between the electric control cover 3 and the chassis 111 or the connection between the electric control cover 3 and the side plate 112 can be a detachable connection, for example, connected by threaded fasteners such as screws. In the following description, the connection between the electric control cover 3 and the housing 1 will be described in detail.

[0061] When the electric control cover 3 is only used to form the cavity wall of the accommodating cavity 4, that is to say, the electric control cover 3 only plays a protective effect on the circuit board assembly 2, the function of the electric control cover 3 itself will be relatively simple. Therefore, in this embodiment, the indoor unit further includes a functional module 5, which is arranged on the electric control cover 3. The electric control cover 3 is provided with a wire hole 31, and the functional module 5 is electrically connected to the circuit board assembly 2 through a wire harness passing through the wire hole 31. In this way, by arranging the functional module 5 on the electric control cover 3, the function of the functional module 5 can be integrated into the electric control cover 3, so that the use performance of the electric control cover 3 in this embodiment is stronger.

[0062] Please combine Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the three-dimensional structure of the electric control cover in the indoor unit provided in the embodiment of the present application. Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure from another perspective. In some specific embodiments, the electric control cover 3 includes a cover body 32 and a plurality of enclosures 33, the cover body 32 is connected to one of the plurality of side panels 112, and the cover body 32 is located below the chassis 111, one end of the enclosure 33 is connected to the cover body 32, and the other end of the enclosure 33 extends toward the chassis 111; the accommodating cavity 4 has a cavity top wall, a cavity bottom wall, and a plurality of cavity side walls arranged between the cavity top wall and the cavity bottom wall; the cavity top wall is formed by the chassis 111, the cavity bottom wall is formed by the cover body 32, and the plurality of cavity side walls are formed by the plurality of enclosures 33 and the side panels 112 connected to the cover body 32; wherein, a functional module 5 is arranged on the outer side of the cover body 32, and a wire-passing hole 31 is provided on the enclosure 33.

[0063] With such a configuration, the structure of the side panel 112 of the casing 11 can be utilized to form the side wall of the accommodating cavity 4, so as to reduce the number of steps in the manufacturing process of the electric control cover 3. In addition, by arranging the functional module 5 on the outside of the cover body 32, it is possible to avoid the influence of the arrangement of the functional module 5 on other electrical components in the accommodating cavity 4, and to make full use of the space in the installation cavity 12 and outside the accommodating cavity 4.

[0064] Since the side wall of the accommodating cavity 4 is formed by a plurality of enclosures 33 and a side plate 112, the plurality of enclosures 33 include two first enclosures 331 and a second enclosure 332; the two first enclosures 331 are arranged relatively to each other along a first direction. In the present embodiment, the first direction is consistent with the length direction of the electric control cover 3; the second enclosure 332 and the side plate 112 connected to the cover body 32 are arranged relatively to each other along a second direction, and there is an angle between the second direction and the first direction. In the present embodiment, the second direction is consistent with the width direction of the electric control cover 3; wherein each first enclosure 331 is provided with a wire passing hole 31.

[0065] The first direction is Figure 1 , Figure 2 , Figure 4 and Figure 5 The xx-axis direction is consistent with Figures 1 to 5 The yy-axis direction is consistent.

[0066] The two first panels 331 are named as the first panel 331a and the first panel 331b, that is, the first panel 331a and the first panel 331b are provided with a wire hole 31. If the function module 5 is arranged on the side close to the first panel 331a, the wire harness passing through the wire hole on the first panel 331a can be electrically connected to the circuit board assembly 2; if the function module 5 is arranged on the side close to the first panel 331b, the wire harness passing through the wire hole on the first panel 331b can be electrically connected to the circuit board assembly 2. In this way, the path of the wire harness connected to the function module 5 is shorter, and the arrangement of other structures inside the indoor unit is prevented from being affected by the excessive length of the wire harness.

[0067] Specifically, there are two functional modules 5, and at least one of the two functional modules 5 is electrically connected to the circuit board assembly 2 through a wiring harness passing through a wire hole 31 on a first enclosure 331 disposed close to the functional module 5.

[0068] The two functional modules 5 may include a first functional module and a second functional module:

[0069] If the first functional module is electrically connected to the circuit board assembly 2, and the first functional module is disposed close to the first enclosure 331a, the first functional module is electrically connected to the circuit board assembly 2 via a wiring harness passing through the wire hole 31 disposed on the first enclosure 331a;

[0070] If the first functional module is electrically connected to the circuit board assembly 2, and the first functional module is disposed close to the first enclosure 331b, the first functional module is electrically connected to the circuit board assembly 2 via a wiring harness passing through the wire hole 31 disposed on the first enclosure 331b;

[0071] If the second functional module is electrically connected to the circuit board assembly 2, and the second functional module is disposed close to the first enclosure 331a, the second functional module is electrically connected to the circuit board assembly 2 via a wiring harness passing through the wire hole 31 disposed on the first enclosure 331a;

[0072] If the second functional module is electrically connected to the circuit board assembly 2 and the second functional module is disposed close to the first enclosure 331b, the second functional module is electrically connected to the circuit board assembly 2 via a wiring harness passing through the wire hole 31 disposed on the first enclosure 331b.

[0073] In some optional embodiments, the first functional module and the second functional module mentioned above can be a sterilization module 51 and a communication adapter module 52, wherein the sterilization module 51 is a positive and negative ion sterilization module, and the communication adapter module 52 can be understood as a module with other functions added according to user requirements, and no specific restrictions are made here.

[0074] Exemplarily, the sterilization module 51 and the communication adapter module 52 are arranged at intervals along the first direction; the sterilization module 51 and the communication adapter module 52 are electrically connected to the circuit board assembly 2 through a wiring harness passing through a wire hole 31 on a first enclosure 331 arranged near them.

[0075] Among them, the first enclosure 331a may be adjacent to the sterilization module 51, and the first enclosure 331b may be adjacent to the communication adapter module 52. In this way, the sterilization module 51 is electrically connected to the circuit board assembly 2 through the wire harness passing through the wire hole 31 on the first enclosure 331a, and the communication adapter module 52 is electrically connected to the circuit board assembly 2 through the wire harness passing through the wire hole 31 on the first enclosure 331b. In this way, not only can the wire harness connected to the sterilization module 51 and the communication adapter module 52 be shorter, but also interference between the wire harnesses connected to the sterilization module 51 and the communication adapter module 52 can be avoided, so that the sterilization module 51 and the communication adapter module 52 are easily integrated on the electric control cover 3.

[0076] In order to facilitate the installation of the functional module 5 on the electric control cover 3 and improve the installation efficiency of the functional module 5, the functional module 5 is detachably connected to the electric control cover 3. In this embodiment, the sterilization module 51 is detachably connected to the electric control cover 3, specifically, the sterilization module 51 is detachably connected to the cover body 32; the communication adapter module 52 is detachably connected to the electric control cover 3, specifically, the communication adapter module 52 is detachably connected to the cover body 32.

[0077] like Figure 1 As shown, the sterilization module 51 is provided with first connection holes 511 on opposite sides along the first direction, and the sterilization module 51 can be detachably connected to the cover body 32 through a first fastener 6 that penetrates the first connection hole 511 and the cover body 32. The first fastener 6 can be a threaded fastener such as a screw, and the specific type of the first fastener 6 is not limited.

[0078] Please combine Figure 6 , Figure 6A schematic diagram of the three-dimensional structure of the communication adapter module in the indoor unit provided in the embodiment of the present application. The communication adapter module 52 is detachably connected to the cover body 32 via a second fastener (not shown) and a snap-on structure 7 on opposite sides along the first direction. In this way, not only is the connection between the communication adapter module 52 and the electric control cover 3 more convenient, but also the connection between the communication adapter module 52 and the electric control cover 3 is more reliable. The second fastener may also be a threaded fastener such as a screw, and the type of fastener is not limited.

[0079] A second connection hole 521 may be provided on the communication adapter module 52, and a third connection hole 321 opposite to the second connection hole 521 may be provided on the cover body 32. The second fastener may penetrate the second connection hole 521 and the third connection hole 321 to connect one side of the communication adapter module 52 to the electric control cover 3.

[0080] Furthermore, the clamping structure 7 may include a first clamping portion 71 and a second clamping portion 72; the first clamping portion 71 is arranged on one of the communication adapter module 52 and the electric control cover 3, and the second clamping portion 72 is arranged on the other of the communication adapter module 52 and the electric control cover 3; a first clamping hole 73 is formed on one of the first clamping portion 71 and the second clamping portion 72 for the other to be clamped into, so as to clamp the communication adapter module 52 and the electric control cover 3 together.

[0081] In a specific implementation of this embodiment, the first clamping portion 71 is disposed on the electric control cover 3 , the second clamping portion 72 is disposed on the communication adapter module 52 , and the first clamping portion 71 has a first clamping hole 73 for inserting the second clamping portion 72 .

[0082] The first clamping portion 71 can be formed at the bottom of the cover body 32 by stamping or the like, and the second clamping portion 72 can be formed at the top of the communication adapter module 52 by stamping and cutting or the like. Specifically, a rectangular protrusion can be firstly stamped at the top of the communication adapter module 52, and then the three side edges of the protrusion can be cut off by cutting to form the above-mentioned second clamping portion 72. Here, there is no specific limitation on the molding method of the first clamping portion 71 and the second clamping portion 72.

[0083] It should be noted that, in this embodiment, the direction in which the second engaging portion 72 is engaged with the first engaging hole 73 is consistent with the first direction.

[0084] In order to improve the routing flexibility of the wiring harness connected to the circuit board assembly 2, each first enclosure 331 is provided with a plurality of wire passing holes 31, that is, the first enclosure 331a and the first enclosure 331b are provided with a plurality of wire passing holes 31, and the plurality of wire passing holes 31 are arranged at intervals along the second direction. The plurality of wire passing holes 31 located on the same first enclosure 331 include at least one high-voltage wire passing hole 311 and one low-voltage wire passing hole 312. Specifically, the wire passing holes 31 located on the first enclosure 331a include at least one high-voltage wire passing hole 311 and one low-voltage wire passing hole 312. In this way, high-voltage components can enter through the high-voltage wire hole 311, and low-voltage wire hole 312 can enter through the low-voltage wire hole 312, thereby avoiding interference between the two wiring harnesses. The wiring harness connected to the sterilization module 51 and the communication adapter module 52 in this embodiment can be electrically connected to the circuit board assembly 2 through the high-voltage wire hole 311 or the low-voltage wire hole 312 according to the actual power and current of the two modules.

[0085] In a specific implementation of this embodiment, a high-voltage wire hole 311 and a low-voltage wire hole 312 are provided on the first enclosure 331a, wherein the high-voltage wire hole 311 is located on a side away from the side panel 112 connected to the electric control cover 3, and the low-voltage wire hole 312 is formed between the first enclosure 331a and the side panel 112, that is, part of the side wall of the low-voltage wire hole 312 is formed by the side panel 112.

[0086] Furthermore, a high-voltage wire hole 311 and a low-voltage wire hole 312 are provided on the first enclosure 331b, wherein the low-voltage wire hole 312 is located on a side away from the side plate 112 connected to the electric control cover 3, and the high-voltage wire hole 311 is formed between the first enclosure 331b and the side plate 112, that is, part of the side wall of the high-voltage wire hole 311 is formed by the side plate 112.

[0087] Generally, the wiring harness connected to the circuit board assembly 2 also includes user wiring such as a power cord. Therefore, in some optional embodiments, the multiple wire holes 31 located on the same first enclosure 331 also include user wiring wire holes 313, that is, user wiring wire holes 313 are provided on the first enclosure 331a and the first enclosure 331b.

[0088] Moreover, the user wiring hole 313 on the first enclosure 331a is located between the strong current wire hole 311 and the weak current wire hole 312, and the user wiring hole 313 on the first enclosure 331b is located between the strong current wire hole 311 and the weak current wire hole 312.

[0089] It is understandable that when the wire harness passes through the wire hole 31, the hole wall of the wire hole 31 may cause damage such as cutting to the wire harness. Therefore, as an optional embodiment, a flange structure 8 is formed on the hole wall of the wire hole 31, which is folded toward the outside of the electric control cover 3. In this way, by providing the flange structure 8, the smoothness of the hole wall of the wire hole 31 can be improved, so as to avoid the hole wall of the wire hole 31 from damaging the wire harness to a certain extent.

[0090] It should be noted that a flange structure 8 is formed on each of the wire holes 31 located on the first enclosure plate 331a and the first enclosure plate 331b.

[0091] Please combine Figure 7 and Figure 8 , Figure 7 A three-dimensional structural diagram of another partial structure of the indoor unit provided in an embodiment of the present application, Figure 8 for Figure 7 The enlarged schematic diagram of the local structure at B in the middle. The cover body 32 includes a covering portion 322 and a first connecting portion 323, and the enclosure 33 is connected to the covering portion 322; in the width direction of the electric control cover 3, the first end of the first connecting portion 323 is connected to the covering portion 322, the second end of the first connecting portion 323 extends toward the side plate 112, and the first end of the first connecting portion 323 is located above the second end of the first connecting portion 323; the side of the side plate 112 facing the second enclosure 332 is provided with a second connecting portion 113 protruding from the plate surface of the side plate 112, and the second connecting portion 113 and the first connecting portion 323 are connected by a third fastener; wherein the bottom surface of the second connecting portion 113 is an inclined surface in contact with the first connecting portion 323, and the bottom end of the inclined surface is connected to the plate surface of the side plate 112, and the top end of the inclined surface extends toward the second enclosure 332.

[0092] In this way, by providing the first connecting portion 323 on the electric control cover 3 and the second connecting portion 113 on the housing 11, the electric control cover 3 can be detachably connected to the housing 11. Moreover, by providing the first connecting portion 323 with an inclined extension and the inclined bottom surface of the second connecting portion 113 that is in contact with the first connecting portion 323, it is convenient for the operator to connect the electric control cover 3 to the housing 11.

[0093] It should be noted that the third fastener may be a threaded fastener such as a screw. Specifically, the first connection portion 323 may have a fourth connection hole 3231. The second connection portion 113 has a fifth connection hole 1131 opposite to the fourth connection hole 3231. The third fastener may pass through the fourth connection hole 3231 and the fifth connection hole 1131 to connect the first connection portion 323 to the second connection portion 113.

[0094] It is not difficult to understand that when the electric control cover 3 and the return air port are arranged opposite each other in the up and down directions, the airflow entering through the return air port may be affected to a certain extent by the presence of the electric control module. Therefore, in order to avoid affecting the flow of gas to a certain extent, in some embodiments, the structure of the electric control cover 3 can be improved to avoid the occurrence of this phenomenon.

[0095] Specifically, the cover part 322 includes a first cover body 3221 and a second cover body 3222; the first cover body 3221 is located between the enclosure 33 and the second cover body 3222, the second cover body 3222 is located between the first cover body 3221 and the first connecting portion 323, and the second cover body 3222 is connected to the first end of the first connecting portion 323; wherein one end of the first cover body 3221 is connected to the second cover body 3222, and the other end of the first cover body 3221 extends upwardly and is connected to the enclosure 33. The enclosure 33 is the second enclosure 332.

[0096] In this way, the connection between the cover portion 322 and the enclosure 33, that is, the connection between the cover portion 322 and the second enclosure 332 is not in the form of a right angle, but forms an oblique angle. Such an arrangement can avoid the airflow entering from the return air port to a certain extent, and to a certain extent avoid the influence of the setting of the electric control cover 3 on the air intake, thereby making the indoor unit provided in this embodiment have better performance.

[0097] In order to improve the connection reliability between the electric control cover 3 and the housing 11, a plurality of second connection parts 113 arranged at intervals may be provided on the side plate 112. In this way, the connection reliability between the electric control cover 3 and the housing 11 can be improved.

[0098] Specifically, the plurality of second connection parts 113 are arranged at intervals along the first direction, and when there are a plurality of second connection parts 113 , there should also be a plurality of fourth connection holes 3231 formed on the first connection part 323 , and one second connection part 113 corresponds to one fourth connection hole 3231 .

[0099] In order to improve the structural strength of the electric control cover 3, in some optional embodiments, the cover body 32 further includes an extension portion 324, which is connected to the second end of the first connection portion 323; and the extension portion 324 extends downward along the plate surface direction of the side plate 112 and contacts the side plate 112. In this way, by providing the extension portion 324 on the first connection portion 323, the structural strength of the electric control cover 3 can be improved, and the electric control cover 3 can be prevented from being broken at the connection when the electric control cover 3 is connected to the housing 11 to a certain extent.

[0100] Among them, the up and down directions Figures 3 to 5 , Figure 7The up and down directions are consistent.

[0101] Furthermore, the indoor unit provided in this embodiment may further include an insulating member 9, the insulating member 9 is connected to the housing 1, the circuit board assembly 2 is connected to the bottom of the insulating member 9, and the electric control cover 3 and the insulating member 9 are enclosed to form a receiving cavity 4, specifically, as Figure 8 As shown, the insulating member 9 is connected to the chassis 111 .

[0102] Please combine Figure 8 , Figures 9 and 10 , Fig. 9 for Figure 8 Exploded diagram of Fig.10 This is a structural diagram of another partial structure of the indoor unit provided in the embodiment of the present application. Figures 8 to 10 As shown, the insulating member 9 and the chassis 111 can be connected by means of threaded fasteners and snap-fit ​​connections. Specifically, the insulating member 9 forms a first connecting groove 91 recessed toward the top on opposite sides along the first direction, a sixth connecting hole 911 is provided on the bottom of the first connecting groove 91, and a seventh connecting hole 114 opposite to the sixth connecting hole 911 is provided on the chassis 111. Threaded fasteners such as screws can pass through the sixth connecting hole 911 and the seventh connecting hole 114 in sequence to connect the insulating member 9 and the chassis 111 together.

[0103] In order to snap-connect the insulating part 9 and the chassis 111 together, a first plug-in portion 115 protruding toward the bottom and formed with a plug-in hole can be provided on the chassis 111, and a second plug-in portion 92 is provided at one end of the insulating part 9 close to the first enclosure 331b. The second plug-in portion 92 is inserted into the first plug-in portion 115 through the plug-in hole and snap-connected with the first plug-in portion 115.

[0104] Please combine Figures 11 to 13 , Fig.11 for Fig.10 Cross-sectional view along CC direction, Fig.12 for Fig.11 The enlarged schematic diagram of the local structure at D in the middle. Fig.13 for Fig.11 The enlarged schematic diagram of the local structure at E in the middle. The circuit board assembly 2 comprises a circuit board 21 and electrical components arranged on the circuit board 21 , wherein the circuit board 21 is engaged with the insulating member 9 to connect the circuit board assembly 2 to the insulating member 9 .

[0105] In some optional embodiments, a first clip 93 and a second clip 94 are respectively provided on opposite sides of the insulating member 9 along the second direction, and the first clip 93 and the second clip 94 are both stopped at the lower end of the circuit board 21 to snap-connect the circuit board 21 to the insulating member 9.

[0106] It should be noted that, in order to improve the connection reliability between the circuit board assembly 2 and the insulating member 9 , a plurality of first clips 93 and a plurality of second clips 94 may be provided and arranged at intervals along the first direction.

[0107] Generally, in order to sort out the wire bundles on the circuit board assembly 2, a structure such as a wire management rack is usually provided. In the indoor unit provided in this embodiment, a wire management cover 10 is also included. The wire management cover 10 is connected to the insulating member 9 and is located below the circuit board assembly 2. Specifically, Fig.14 and Fig.15 As shown, Fig.14 for Fig.10 Cross-sectional view along FF, Fig.15 for Fig.14 A schematic diagram of the enlarged local structure at G in the middle. In order to achieve the connection between the cable cover 10 and the insulating member 9, a third clamping portion 95 is provided on one side of the insulating member 9 along the width direction, a third buckle 101 is provided on the cable cover 10, and a second clamping hole 951 is provided on the first third clamping portion 95 for the third buckle 101 to pass through, and the axial direction of the second clamping hole 951 is consistent with the up-down direction, so that the first third clamping portion 95 is stopped at the bottom of the third buckle 101.

[0108] It should be noted that, in order to improve the connection reliability between the wire management cover 10 and the insulating member 9 , a plurality of the third clamping portions 95 and the third buckles 101 may be provided and arranged at intervals along the first direction.

[0109] In the specific implementation of this embodiment, there are two third clamping parts 95, and correspondingly, there are also two third buckles 101. Here, there is no limitation on the number of the third clamping parts 95 and the third buckles 101.

[0110] In order to improve the installation stability of the electric control cover 3 , in some optional implementations, a positioning structure 20 may be provided between the wire management cover 10 and the electric control cover 3 , and the positioning structure 20 is used to define the relative position between the wire management cover 10 and the electric control cover 3 .

[0111] For details, please combine Fig.16 , Fig.16 for Figure 3The enlarged schematic diagram of the local structure at H in the middle. The positioning structure 20 includes a positioning protrusion 201, which is arranged on one of the wire management cover 10 and the electric control cover 3; the other of the wire management cover 10 and the electric control cover 3 is provided with a positioning hole 202, and the positioning protrusion 201 extends into the positioning hole 202. Specifically, the other side of the wire management cover 10 along the second direction is provided with a positioning protrusion 201 protruding along the second direction, and the covering portion 322 of the electric control cover 3 is provided with a positioning hole 202 corresponding to the positioning protrusion 201. In this way, the arrangement of the positioning structure 20 can not only improve the installation stability of the electric control cover 3, but also improve the installation efficiency of the electric control cover 3.

[0112] Further, in order to improve the positioning reliability of the positioning structure 20, there are multiple positioning protrusions 201, and the multiple positioning protrusions 201 are distributed at intervals, and one positioning protrusion 201 corresponds to one positioning hole 202. In the specific implementation of this embodiment, there are two positioning protrusions 201 and two positioning holes 202, and they are arranged at intervals along the first direction. Here, there is no limit on the number of positioning protrusions 201 and positioning holes 202.

[0113] In some implementations, in order to improve the heat dissipation performance of the electric control module, the electric control cover 3 is exposed by any one of the return air port and the air outlet. In a specific implementation of this embodiment, the return air port and the electric control cover 3 are arranged opposite to each other in the vertical direction.

[0114] There may be multiple return air vents, and the occupied area of ​​the multiple return air vents on the panel covers the projection area of ​​the electric control cover 3 on the panel. In this way, it is convenient to dissipate heat for the electric control module and improve the performance of the indoor unit provided in this embodiment.

[0115] This embodiment further provides a HVAC device, including the indoor unit in the above embodiment. The indoor unit has been described in detail in the above embodiment, and will not be described again here.

[0116] It should be noted that the HVAC equipment provided in this embodiment should also include other components or modules such as an outdoor unit. Here, other components or modules in the HVAC equipment provided in this embodiment will not be introduced one by one.

Claims

1. An indoor unit, characterized in that: include: A housing is formed with a mounting cavity; A circuit board assembly is located in the mounting cavity; An electric control cover is located in the installation cavity and connected to the housing, the electric control cover and the housing together form a receiving cavity for accommodating the circuit board assembly, and a wire passing hole is provided on the electric control cover; and A functional module is arranged on the electric control cover, and the functional module is electrically connected to the circuit board assembly through a wiring harness passing through the wire hole.

2. The indoor unit according to claim 1, characterized in that: The housing comprises a panel and a casing, the casing has an open bottom, and the panel cover is arranged at the open bottom to enclose the panel and form the installation cavity; The panel is provided with an air return port and an air outlet connected to the installation cavity, and the air return port and the air outlet are arranged at intervals; Wherein, the electric control cover is exposed from any one of the return air port and the air outlet.

3. The indoor unit according to claim 2, characterized in that: The housing comprises a chassis and a plurality of side panels arranged around the chassis; The bottom plate is arranged opposite to the panel, and the bottom surface of the bottom plate forms the top wall of the installation cavity, and the inner surface of the side plate forms the side wall of the installation cavity; The electric control cover is connected to the chassis or the side panel.

4. The indoor unit according to claim 3, characterized in that: The electric control cover comprises a cover body and a plurality of enclosures, wherein the cover body is connected to one of the plurality of side plates, one end of the enclosure is connected to the cover body, and the other end of the enclosure extends toward the chassis; The accommodating cavity comprises a cavity top wall, a cavity bottom wall and a plurality of cavity side walls arranged between the cavity top wall and the cavity bottom wall; The cavity top wall is formed by the bottom plate, the cavity bottom wall is formed by the cover body, and the plurality of cavity side walls are formed by the plurality of enclosure plates and side plates connected to the cover body; Wherein, the functional module is arranged on the outer side of the cover body, and the wire passing hole is opened on the enclosure.

5. The indoor unit according to claim 4, characterized in that: The cover body comprises a covering portion and a first connecting portion, and the enclosure is connected to the covering portion; In the width direction of the electric control cover, the first end of the first connection portion is connected to the covering portion, and the second end of the first connection portion extends toward the side plate to be connected to the side plate; Wherein, the first end of the first connecting portion is located above the second end of the first connecting portion.

6. The indoor unit according to claim 5, characterized in that: The covering portion includes a first covering body and a second covering body; The first covering body is located between the enclosure and the second covering body, the second covering body is located between the first covering body and the first connecting portion, and the second covering body is connected to the first end of the first connecting portion; Wherein, one end of the first covering body is connected to the second covering body, and the other end of the first covering body extends upwardly and is connected to the enclosure plate.

7. The indoor unit according to claim 4, characterized in that: The plurality of enclosures include two first enclosures and a second enclosure; The two first enclosures are arranged opposite to each other along a first direction, and the second enclosure and the side plate connected to the cover body are arranged opposite to each other along a second direction, and an angle is formed between the second direction and the first direction; Wherein, each of the first enclosure plates is provided with the wire passing hole.

8. The indoor unit according to claim 7, characterized in that: There are two functional modules, and at least one of the two functional modules is electrically connected to the circuit board assembly via a wiring harness passing through a wire hole on the first enclosure plate disposed near the functional module.

9. The indoor unit according to claim 8, characterized in that: The two functional modules are a sterilization module and a communication switching module, and the sterilization module and the communication switching module are arranged at intervals along the first direction; The sterilization module and the communication adapter module are both electrically connected to the circuit board assembly via a wiring harness passing through a wire hole on the first enclosure plate disposed near the sterilization module and the communication adapter module.

10. The indoor unit according to claim 4, characterized in that: The functional module is detachably connected to the cover body.

11. The indoor unit according to claim 10, characterized in that: The functional module is detachably connected to the cover body via a first fastener.

12. The indoor unit according to claim 10, characterized in that: The opposite sides of the functional module are detachably connected to the electric control cover via a second fastener and a clamping structure.

13. The indoor unit according to claim 12, characterized in that: The clamping structure comprises a first clamping portion and a second clamping portion; The first clamping portion is disposed on one of the function module and the electric control cover, and the second clamping portion is disposed on the other of the function module and the electric control cover; A first clamping hole for the other to be clamped into is formed on one of the first clamping portion and the second clamping portion, so as to clamp the functional module and the electric control cover together.

14. The indoor unit according to claim 7, characterized in that: Each of the first enclosures is provided with a plurality of the wire passing holes, and the plurality of the wire passing holes located on the same first enclosure include at least one high-voltage wire passing hole and one low-voltage wire passing hole.

15. The indoor unit according to claim 14, characterized in that: The plurality of wire-passing holes located on the same first enclosure plate also include a user wiring wire-passing hole.

16. The indoor unit according to claim 7, characterized in that: The cover body comprises a covering portion and a first connecting portion, and the enclosure is connected to the covering portion; The first end of the first connection portion is connected to the covering portion, the second end of the first connection portion extends toward the side plate, and the first end of the first connection portion is located above the second end of the first connection portion; A second connecting portion protruding from a surface of the side panel is provided on a side of the side panel facing the second enclosure panel, and the second connecting portion is connected to the first connecting portion via a third fastener; The bottom surface of the second connecting portion is an inclined surface in contact with the first connecting portion, the bottom end of the inclined surface is connected to the plate surface of the side plate, and the top end of the inclined surface extends toward the second enclosure plate.

17. The indoor unit according to claim 16, characterized in that: The side plate is provided with a plurality of second connection parts arranged at intervals.

18. The indoor unit according to any one of claims 1 to 17, characterized in that: A flange structure folded toward the outer side of the electric control cover is formed on the hole wall of the wire passing hole.

19. The indoor unit according to any one of claims 1 to 17, characterized in that: It also includes an insulating member and a wire management cover, wherein the insulating member is connected to the housing, the wire management cover and the circuit board assembly are both connected to the insulating member, and the wire management cover is located below the circuit board assembly; A positioning structure is provided between the wire management cover and the electric control cover, and the positioning structure is used to define the relative position between the wire management cover and the electric control cover.

20. The indoor unit according to claim 19, characterized in that: The positioning structure includes a positioning protrusion, and the positioning protrusion is arranged on one of the wire management cover and the electric control cover; A positioning hole is provided on the other of the wire management cover and the electric control cover, and the positioning protrusion extends into the positioning hole.

21. The indoor unit according to claim 20, characterized in that: There are a plurality of positioning protrusions, the plurality of positioning protrusions are distributed at intervals, and one positioning protrusion corresponds to one positioning hole.

22. The indoor unit according to any one of claims 2 to 17, characterized in that: The return air port and the electric control cover are arranged opposite to each other in the up-down direction.

23. The indoor unit according to any one of claims 2 to 17, characterized in that: There are multiple return air outlets; The occupied area of ​​the multiple return air outlets on the panel covers the projection area of ​​the electric control cover on the panel.

24. A HVAC equipment, characterized in that: The indoor unit comprises the indoor unit according to any one of claims 1 to 23.

Images